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Figure 2.5.10. Set-up procedure of transmission in serial interface special function master mode, without clock delay (2)
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Continued from the previous page
Setting UARTi transmit/receive control register 1 (i=0 to 3)
b7
b0
UARTi transmit/receive control register 1
UiC1 [Address 03AD
0 0
0
UARTi transmit interrupt cause select bit
0 : Transmit buffer empty (Tl = 1)
Data logic select bit
0 : No reverse
Set to "0" in clock synchronous serial I/O mode.
Setting UARTi bit rate generator (i = 0 to 3)
b7
b0
UARTi bit rate generator [Address 03A9
UiBRG (i = 0 to 3)
Can be set to 00
16
Note: Use MOV instruction to write to this register.
Write to UARTi bit rate generator when transmission/reception is halted.
Output an "L" to SS port on the receiver side IC
Transmission enabled
b7
b0
UARTi transmit/receive control register 1
1
UiC1 [Address 03AD
Transmit enable bit
1 : Transmission enabled
Writing transmit data (Note)
(b15
(b8)
b7
b0 b7
b0
Setting transmission data
Note: Use MOV instruction to write to this register.
Checking the status of UARTi transmit buffer register (i = 0 to 3)
b7
b0
UARTi transmit/receive control register 1
UiC1 [Address 03AD
Transmit buffer empty flag
0 : Data present in transmit buffer register
1 : No data present in transmit buffer register
(Writing next transmit data enabled)
When transmitting continuously
Writing next transmit data (Note)
(b15)
(b8)
b7
b0 b7
b0
Setting transmission data
Note: Use MOV instruction to write to this register.
Transmission is complete
Output an "H" to the SS port on the receiver side IC
page 97 of 354
, 36D
, 033D
, 32D
]
16
16
16
16
, 0369
, 0339
16
16
to FF
(Note)
16
, 36D
, 033D
, 32D
]
16
16
16
16
UART0 transmit buffer register [Address 03AB
UART1 transmit buffer register [Address 036B
UART2 transmit buffer register [Address 033B
UART3 transmit buffer register [Address 032B
Start transmission
, 36D
, 033D
, 32D
]
16
16
16
16
UART0 transmit buffer register [Address 03AB
UART1 transmit buffer register [Address 036B
UART2 transmit buffer register [Address 033B
UART3 transmit buffer register [Address 032B
2. Serial Interface Special Function
, 0329
,]
16
16
, 03AA
] U0TB
16
16
, 036A
] U1TB
16
16
, 033A
] U2TB
16
16
, 032A
] U3TB
16
16
, 03AA
] U0TB
16
16
, 036A
] U1TB
16
16
, 033A
] U2TB
16
16
, 032A
] U3TB
16
16
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